Presently usage data is exported when LO is closed and this likely has the following problems. 1) Usage data is taking up memory 2) Usage data will be lost if LO crashes It would be better if the usage data is outputted at the time an event is executed. So the usage data file should be created when LO is launched and it should have a time stamp as part of its filename - e.g. usage-2015-12-12T06_51_40.txt.
The usage-data collection code was removed and there are no plans to add privacy-invasive telemetry.